What do you do when you can't find an app to do everything you want it to do? You build your own.

That's what gym enthusiast Adam First did when he couldn't find an app to help him with his workouts. Adam spoke to Kim on the May 11 episode of The Kim Komando Show and told the story of how he came to develop the very simply named "Gym Exercises & Workouts" app for both Apple and Android.

Apparently, Adam tapped into a need. He said his app started as a simple workout dictionary. In the first three months, he had 25,000 installs, and now he has about 5,500 daily active users. The app lets you create your own workouts, sort of like a playlist of exercises, or you can use predefined workouts.

It's free, so it's ad-supported, but the ads are minimal and we found it to be easy to use and worth the download! Scroll down to download this free app from iTunes or Google Play.